the mighty Tyrannosaurus rex needed a way to cool down. Now, scientists say that two large holes in its skull acted as a kind of internal "air-conditioning unit", to help the dinosaur lose heat.

rex and could have been even larger than the dinosaur king, a new study shows. The newfound sister species, Tyrannosaurus mcraeensis, was identified from a partial fossilized skull that ...

CANYON — The Panhandle-Plains Historical Museum (PPHM) announced this week that it has acquired a cast of a Tyrannosaurus rex ...